White Horse Reservoir, UK

Name of the Project
White Horse Reservoir.
Location
Oxfordshire, England, UK.
Project Owner/s
Thames Water.
Project Description
The 150-billion-litre reservoir is one of nine new reservoirs that will provide water security for the UK, supporting government's agenda for 1.5-million new homes, unlocking economic growth, and providing long-term resilience against climate change.
The proposed reservoir would supply water locally, in Oxfordshire and Wiltshire, through to Hampshire and London.
Potential Job Creation
About 1 800 jobs will be created during construction.
Capital Expenditure
£5.7-billion.
Planned Start/End Date
Not stated.
Latest Developments
A tender notice was launched in February 2026 to bring a contractor on board to build the nationally significant reservoir.
Thames is seeking a main works contractor to design, build, test and commission the reservoir.
Key Contracts, Suppliers and Consultants
None stated.
Contact Details for Project Information
Thames Water, tel + 44 845 920 0888.
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